kc3-lang/gnulib/doc/posix-functions/dup2.texi

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• Hash : 80cb44fa
  Author :
  Date : 2009-07-21T09:00:57
  

  dup2: fix more mingw problems
  
  * lib/dup2.c (rpl_dup2) [_WIN32]: Avoid hanging when duplicating
  fd to itself.
  * doc/posix-functions/dup2.texi (dup2): Document the bug.
  * lib/unistd.in.h (dup2) [REPLACE_FCHDIR]: Avoid name collision.
  * lib/fchdir.c (dup2): Manage preprocessor macros correctly.
  (rpl_dup2_fchdir): Rename from rpl_dup2, and let dup2 module take
  care of mingw bugs.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• doc/posix-functions/dup2.texi

• @node dup2
  @section @code{dup2}
  @findex dup2
  
  POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/dup2.html}
  
  Gnulib module: dup2
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This function always returns 0 for success on some platforms:
  mingw.
  
  @item
  This function can hang when duplicating an fd to itself on some platforms:
  mingw.
  
  @item
  This function returns 0 for dup2 (1, 1) on some platforms:
  Cygwin 1.5.x.
  
  @item
  This function is missing on some older platforms.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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